Xcode 清掉 Cache 的方法 – 2019

Xcode 編譯時，都會產生不少 Cache 的檔案，要怎麼清除掉這些檔案呢？

• 註：目前環境 Xcode 10，目前看到 Xcode 10 以前都沒問題，10 以後還不確定

Xcode 清掉 Cache 的方法

想要清掉 Xcode 產生的 Cache，除了要省空間外，主要是遇到某些情況，想要將環境清乾淨，整個重新編譯，確認問題用。

Xcode 清除 Cache 的步驟

1. 開啟 Xcode
   1. Command + Shift + K
   2. Command + Option + Shift + K
2. 開啟 Terminal
   1. ls ~/Library/Developer/Xcode/DerivedData/ModuleCache # 先看看
   2. rm -fr ~/Library/Developer/Xcode/DerivedData/ModuleCache # 擔心的話建議先 mv 到自己目錄
   3. ls -lh "$(getconf DARWIN_USER_CACHE_DIR)/org.llvm.clang.jon/ModuleCache" # path: /var/folders/gq/xxxxxxxxxxxxxxx/C/org.llvm.clang.jon/ModuleCache
   4. rm -fr "$(getconf DARWIN_USER_CACHE_DIR)/org.llvm.clang.jon/ModuleCache" # 擔心的話建議先 mv 到自己目錄
   5. defaults delete com.apple.dt.Xcode # 清掉 xcode build cache

相關網頁

• 下述摘錄自此篇：Xcode Quick Fix - Clear Cache 此篇作者有直接寫一隻程式：fix-xcode.rb
  1. Clean the Build
     • Command + Shift + K
     • Product → Clean Build Folder
  2. Clean the Build Folder
     • Command + Option + Shift + K
  3. Reset the Simulator Content and Settings
     • Menu Bar → iOS Simulator → Reset Contents And Settings
  4. Delete Derived Data
     • Menu Bar → Window → Organizer → Projects → Select Your Project
  5. Delete the Module Cache
     • rm -fr ~/Library/Developer/Xcode/DerivedData/ModuleCache
  6. Delete Xcode Preferences
     • defaults delete com.apple.dt.Xcode # terminal 直接輸入即可
• 下述摘錄自此篇：How to clear Xcode cache and stop crashes
  1. clean build: Command + Shift + K
  2. Clean out the build folder: Command + Shift + Option + K
  3. Reset Simulator content and settings: menu → iOS Simulator → click Reset Content and Settings
  4. Delete derived data: rm -fr ~/Library/Developer/Xcode/DerivedData/ModuleCache
  5. Launch Terminal: defaults delete com.apple.dt.Xcode
• How to Empty Caches and Clean All Targets Xcode 4 and later
• 乾淨的移除 Xcode - Qiita